-48.34% is the change from 662 to 342
Calculation steps:
[( 342 - 662 ) ÷ 662] x 100 = -48.34%
Formula
Percentage change = [(342 - 662) / 662] x 100
Subtract the new number by the original number
342 - 662 = -320
-320 ÷ 662 = -0.48338368580060426
-0.48338368580060426 x 100 = -48.34%